File:Bell telephone magazine (1922) (14570018490).jpg

Identifier: belltelephonemag19amerrich (find matches)
Title: Bell telephone magazine
Year: 1922 (1920s)
Authors: American Telephone and Telegraph Company American Telephone and Telegraph Company. Information Dept
Subjects: Telephone
Publisher: (New York, American Telephone and Telegraph Co., etc.)
Contributing Library: Prelinger Library
Digitizing Sponsor: Internet Archive

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Text Appearing Before Image:
Fig. 4. ICE AND FROST The total diameter of these encrusted telephone wires is seven inches
Text Appearing After Image:
pio W 19^0 Outwitting Open Wires Worst Foe 235 struction in such a way as to coverthese sections first. After collectingall available information on ice stormsaffecting the Bell System plant priorto that time, the map was preparedfor Mr. Vail. This marked the start of the sys-tematic compilation of detailed rec-ords of ice storm damage to Systemlines, including comprehensive datawith regard to the severity of icestorms, their frequency and distribu-tion, as the basis for intelligent designof the pole line and wire plant. Fromthat time on, as storm data becameavailable, they were posted, usingcoded-head pins, on a large wall mapof which Figure 5 is a reproduction.This ice storm map covered theUnited States and that portion ofCanada in which the Bell TelephoneCompany of Canada operates. Thevarious Companies in the System con-tinued to prepare these careful re-ports, which in turn were posted onthe map until it represented the his-tory of 25 years of experience withice on wires of the Be

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